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Finding the Fourth Proportional to 460.95, 635.88 and 378.39

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Solution

The fourth proportional to 460.95, 635.88 and 378.39 is: 521.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.95 : 635.88 = 378.39 : x
  2. Step 2: Convert to fraction form
    460.95/635.88 = 378.39/x
  3. Step 3: Cross multiply
    460.95x = 635.88 × 378.39
  4. Step 4: Simplify right side
    460.95x = 240,610.63
  5. Step 5: Solve for x
    x = 240,610.63/460.95
  6. Step 6: Final answer
    x = 521.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.